How to write the lewis dot structure for H2CCl2

         H

         ° *         . .

H  ° *   C  * ·    Cl :

           * ·           . .

       :  Cl :

          . .

Explanation:

Carbon has 4 valent electrons

  *

 *C*

   *

Hydrogen has 1 electron

H°

Cl has 7 electrons on the last level.

 . .

: Cl·

 . .

         H

         ° *         . .

H  ° *   C  * ·    Cl :

           * ·           . .

       :  Cl :

          . .

the answer would be a

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.